Implement base TurtleController and simple VolumeExcavationController

lib/stack.lua

@@ -0,0 +1,48 @@
+---@class Stack
+---@field elements table[]
+local Stack = {}
+Stack.__index = Stack
+
+
+---@return Stack
+function Stack:Create()
+  -- stack table
+  local t = {}
+  setmetatable(t, Stack)
+
+  -- entry table
+  t.elements = {}
+
+  return t
+end
+
+
+---@param element table
+function Stack:Push(element)
+    if element == nil or element == {} then
+        return
+    end
+
+    table.insert(self.elements, element)
+end
+
+
+---@return table
+function Stack:Pop()
+    return table.remove(self.elements)
+end
+
+
+---@return table
+function Stack:Peek()
+    return table[#self.elements]
+end
+
+
+---@return number
+function Stack:Count()
+    return #self.elements
+end
+
+
+return Stack